Marriage Defense Battle

Qiao Wanxing believed she had married the most handsome, promising, and caring husband, He Youwei. However, shortly after giving birth, she had a nightmare in which He Youwei was cheating on her. Later, she discovered another woman's hair on He Youwei's shirt and a congratulatory card sent to her husband by a woman named "Han." Did He Youwei really cheat? Can Qiao Wanxing uncover the truth?